Linksys WET11 Manual De Usuario
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Appendix B: Wireless Security
What Are the Risks?
What Are the Risks?
Wireless-B Ethernet Bridge
The solution, then, is to segment your network up into multiple groups. If your network had 80 users and you
used four WEP keys, a hacker would have access to only ¼ of your wireless network resources. In this way,
multiple keys reduce your liability.
used four WEP keys, a hacker would have access to only ¼ of your wireless network resources. In this way,
multiple keys reduce your liability.
Finally, be sure to change your WEP key regularly, once a week or once a day. Using a “dynamic” WEP key, rather
than one that is static, makes it even harder for a hacker to break into your network and steal your resources.
than one that is static, makes it even harder for a hacker to break into your network and steal your resources.
WEP Encryption
WEP encryption for the Bridge is configured through the Setup Wizard or the Web-based Utility’s Setup tab. For
more information about the Setup Wizard, refer to “Chapter 5: Setting Up the Wireless-B Ethernet Bridge.” To
enable WEP encryption through the Web-based Utility, click the WEP Key Settings button on the Setup tab. The
Edit WEP Settings screen will appear, as shown in Figure B-2.
more information about the Setup Wizard, refer to “Chapter 5: Setting Up the Wireless-B Ethernet Bridge.” To
enable WEP encryption through the Web-based Utility, click the WEP Key Settings button on the Setup tab. The
Edit WEP Settings screen will appear, as shown in Figure B-2.
To configure the WEP settings, follow these instructions:
1. For the Default Transmit Key setting, select which WEP key (1-4) will be used when the Bridge sends data.
Make sure the other wireless-equipped devices are using the same key.
2. For the WEP Encryption setting, select 64-Bit (10 hex digits) or 128-Bit (26 hex digits) from the drop-down
menu.
3. The WEP Key can be generated in two ways: you can use a Passphrase or you can enter it manually.
If you wish to use a Passphrase, enter it and then click the Generate key to generate WEP key(s). The
Passphrase is case-sensitive and can be a maximum of 16 alphanumeric characters. (The Passphrase
function is compatible with Linksys wireless products only. If you want to communicate with non-Linksys
wireless products, you will need to enter your WEP key(s) manually on the non-Linksys wireless products.)
Passphrase is case-sensitive and can be a maximum of 16 alphanumeric characters. (The Passphrase
function is compatible with Linksys wireless products only. If you want to communicate with non-Linksys
wireless products, you will need to enter your WEP key(s) manually on the non-Linksys wireless products.)
If you are not using a Passphrase, then you can enter one or more WEP keys manually.
In each Key field, manually enter a set of values. (Do not leave a key field blank, and do not enter all zeroes.
These are not valid key values.) If you are using 64-bit WEP encryption, then each key must consist of exactly
10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then each key must consist of
exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.
These are not valid key values.) If you are using 64-bit WEP encryption, then each key must consist of exactly
10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then each key must consist of
exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.
4. Click the Apply button to apply your changes and return to the Setup tab or Cancel to cancel your changes.
Click the Help button for additional on-screen information.
Figure B-2: WEP Encryption
Important: Always remember that each
point in your wireless network MUST use the
same WEP Encryption method and encryption
key or your wireless network will not function
properly.
point in your wireless network MUST use the
same WEP Encryption method and encryption
key or your wireless network will not function
properly.